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Windows 7: Random crashes have returned

A few days ago I posted here for problem with random crahes at startup. I removed old ASPI driver and disabled a strange IDE controller in device manager called ATWJYKUR IDE Controller. This seemed to fix my problem and so I decided to have a clean up. I ran disk cleanup etc. and then while running defrag, it did not complete and crashed again. This morning I started up and it's back again.
Not sure where to go from here.

If you're noticing a strange IDE controller then it may be suspect of a rootkit infection. They will register virtual drive devices or even controllers in order to safely harbor their internal code in a virtual partition that's away from the prying eyes of AV engines. You'll want to check up with the security team here at SF in the appropriate forum to see about the best approach regarding this. Concerning rootkits, manual removal for a novice or even letting AV engines attempt to clean it for you is not recommended.

Anyways, I do notice at least a large number of PCI Express WHEA errors in that there's some failure on your PCI Express controller hub. The solitary crashdump also is a WHEA-produced BSOD caused by your PCI Express hub. If you have any PCI Express cards installed, they may be the cause of it, but most likely the hub itself is faulty, in which case you'll need to replace the motherboard.

I did some googling and found that others with ASRock X58 boards have reported WHEA errors too coming from the same thing. Commonly installing driver updates from the Intel site on the ICH10R and X58 chipsets did the trick.

yes I was very suspect about an IDE controller that cannot be found with google, I will follow up with a visit to appropriate site here.

I have only the video card installed now as I removed all hardware in attempt to isolate the problem and have now installed the latest Intel drivers, in fact, I ran 'slim drivers' to identify any out of date ones, but noted them and went to the official sites to download.

I have done all the memtest things and you are probably right, the motherboard will have to go, Not much good on the net about it and the X68 seems a better option.

I found more information. If I'm looking at it right, the SD bit was set for this specific PCI-E error. SD means Surprise Down, as in it was reported by the controller that the link established between the PCI-E card and the controller hub was lost. Unfortunately this can be rather broad, in that it could mean either the card or the motherboard was responsible for losing the connection. There's also the possibility of dust or something else that's stuck in the PCIE slot, or that the card is not flush and correctly inserted into the slot. Make sure that isn't the case, otherwise, given the complaints from others about this board, I'd lean more to the controller being responsible.

Looked up VenID:DevID on PCIDatabase.com. Turned up with the client's Intel 7500 Chipset PCIe Root Port which is part of the ICH10 Intel Southbridge chipset.

I then went to MSDN and looked up any structure information related to PCI Express and AER (Advanced Error Reporting). The results came up with 3 possible structures. Because this was a report sent by the Root Port (you can tell in the WHEA error by the Port Type), the structure we want is PCI_EXPRESS_ROOTPORT_AER_CAPABILITY. Then I looked at the structure details related to Uncorrectable Error Status as it should tell us the current status of the error that was triggered. In the WHEA record, it shows us that SD is capitalized, meaning the bit related to that is set, so we should look for details on what "SD" most likely means. Result in the article is "Surprise Down". Googling this showed that it means a report that there was a sudden connection loss between the card and the controller.

Thanks again for your continued help, I will now strip and do a thorough clean. After months of this I am ready to at least change the motherboard, maybe clean install of everything. Can you recommend a quality board?

I personally can't find any problems with ASRock in general. For the price, they are very good quality boards. Of course, with any manufacturer there's always going to be the inevitable defect that slips through QA/QC. Though if there's a number of reports of problems with that particular model, bumping it up to the x68 may improve on it (there may be issues in general with the x58 Intel chipset).

I now have fully stripped and rebuilt the motherboard, cleaned and dusted everything. There was quite a lot of dust and I considered opening the video card up to clean but couldn't get the cover off.

Anyway, all back together and running fine, no crashes since for around 24 hours now. Forcing many different types of restarts. Let's hope that it was just that. Interestingly, I found that the power on/off switch wire and the reset button were both connected to plugs on the compro TV card and not the motherboard. and even more surprising was a sticker on the TV card that reads, 'turn power to pc off for 30 seconds should computer suffer from constant restarts'. Very suspicious. We will see how it performs without this pci card for a while.

Thanks again for all your help, I will give it a couple of days, if all good, then I will mark this as solved.

UPDATE: Private correspondence with this individual has confirmed the cause was indeed the TV Tuner card, a VideoMate Vista T750F PCI card.Note that this is not a PCI-E card but a PCI card, but the same controller reports for both PCI-E and PCI bus.

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